Product DescriptionCMOS Circuit Design for RF sensors is the design of CMOS circuits about sensors and actuators for use in wireless RF systems. The main application is implantable transducers for biomedical purposes such as detection of nerve signals and electrical stimulation of nerves. the emphasis is on power and data link in a wireless system with sensors that are powered via the RF link. new principles and methods are presented for controlling the power to th. . . More>>
Posts Tagged ‘sensors’
CMOS Circuit Design for RF Sensors
Saturday, April 10th, 2010LensPen LENSK2 SensorKlear Plus Professional Cleaning Kit for CCD and CMOS Sensors on Digital Cameras
Wednesday, March 31st, 2010- Contains: (1) LensPen SensorKlear
- (1) Spare SensorKlear Head app. 50 cleanings per head.
- (1) Rocket Blower.
Product cleaning kit DescriptionProfessional CCD and CMOS cameras numériques.Contient 1 Pen Sensor Klear and 1 fan Rocket LensPen.Propreté CCD and CMOS like the pros! Use the blower for easy to remove dust and dry pen for SensorKleaer dust particles sticky redouté.SensorKlear combines the unique LensPen cleaning the head with an articulated head, perfect for use with your SensorKlear Magnifier (sold separately). . . . More>>
Battle of video sensors – CCD vs. CMOS
Tuesday, March 16th, 2010The image sensor is the component camera that captures light and begins the process of converting a digital image. There are two types of sensors of the security camera: CCD (Charge Coupled Device) and CMOS (Complementary Metal Oxide Semiconductor). Which one you choose depends on your application. First a little background on each technology. With CCD, charge each individual pixel is transferred by an output node, which is then converted into an electrical signal. The signal is then buffered and sent as an analog signal. Because the pixels can be devoted to capturing light, and the picture quality is generally quite high. With a CMOS sensor, each pixel carries its own expense to voltage conversion, and the sensor also performs amplification and noise correction. The sensor also includes circuitry that allows the scan component output information in a digital format. Because of the complexity of the design, the area devoted to capturing light is reduced. And because each pixel must perform its own conversion, uniformity (image quality) is lower. The production cost for both types of sensors are similar, but CMOS chips require some additional support to optimize image quality. CMOS sensors are ideal for devices that require speed and low power consumption, while CCDs excel in image quality and performance in low light. Although both CMOS and CCD sensors have matured a lot in recent years, when it comes to security cameras, I prefer to external applications for CCD and CMOS functions of the camera Indoor IP. Let me explain why. Worldwide camera, CCD and CMOS are virtually identical in terms of performance. In fact, CMOS sensors are very interesting in this space because of their power needs much lower – an important feature for devices that run on batteries. In the world of security cameras, I find that the CCD sensors outperform their counterparts CMOS settings keys. The first and most important is the sensitivity to light. If you need a security camera with superior capabilities of night vision, CCD is the way to go. The CMOS cameras I tested, with or without infrared light, have been almost completely blind in the dark. Cameras with CCD sensors are very capable in low light applications, and are terrific when combined with infrared light. If you need to record in low light situations, CCD is the way forward – do not even think CMOS. The second factor to consider is image quality. In the world of security cameras, while the two technologies come together, the CCC still has the edge when it comes to image quality. Because CCD sensors have less image noise than their counterparts in CMOS. Why would anyone want to consider purchasing a security camera with a CMOS sensor? Mainly because these sensors are more prevalent in the IP Security Cameras – ie, cameras that are equipped with built in web server and communicate using IP over CAT5 cabling. These cameras tend to be very affordable and are ideal for indoor applications requiring video web-based streaming. In conclusion, CCD sensors are the way forward for outdoor, low light scenarios, or at a higher quality image is required. CMOS sensor based camera security should be considered for interior applications with decent lighting conditions.
CMOS Cascade Sigma-Delta Modulators for Sensors and Telecom: Error Analysis and Practical Design
Tuesday, March 16th, 2010Product DescriptionCMOS Cascade Sigma-Delta Modulators for Sensors and Telecom: Error Analysis and Practical Design presents architectures, circuits, models, methods and practical considerations for designing high-performance low-pass switched-capacitor (SC) Sigma-delta A / D interfaces for mixed-signal CMOS ASICs. Main focus is on architectures cascade, although considerations related to the circuits and error analysis are general and therefore valid for another architect. . . More>>
CMOS Cascade Sigma-Delta Modulators for Sensors and Telecom: Error Analysis and Practical Design





